The Allen-Bradley 871Z-BW10N30-R3 proximity switch is a 30 mm diameter, PTFE-coated brass inductive sensor with a 10 mm sensing distance, shielded housing, and a normally-open output. It is a 2-wire AC/DC weld-field-immune device with Micro QD (AC) connection, designed for use in welding environments where slag or field disturbances are present. The sensor operates on 20-250 V AC/DC and features tubular construction with a PTFE coating for durability in harsh industrial settings. This R3 variant provides reliable NO switching for metal detection in automated systems where weld-field immunity is required.
